(19)

(11)

EP 3 917 934 A2

(12)

(88) Date of publication A3: 10.09.2020 (43) Date of publication: 08.12.2021 Bulletin 2021/49 (21) Application number: 20749034.3 (22) Date of filing: 29.01.2020

(51) International Patent Classification (IPC):  C07D 498/04(2006.01) C07D 401/04(2006.01) C07D 413/04(2006.01) (52) Cooperative Patent Classification (CPC): C07D 487/04 (86) International application number: PCT/US2020/015741 (87) International publication number: WO 2020/160193 (06.08.2020 Gazette 2020/32)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 29.01.2019 US 201962798418 P 31.07.2019 US 201962881128 P (71) Applicant: Foghorn Therapeutics Inc. Cambridge MA 02142 (US)	(72) Inventors: RUPPEL, Sabine, K. Cambridge, MA 02142 (US) YANG, Zhaoxia Cambridge, MA 02142 (US) LOWE, Jason, T. Cambridge, MA 02142 (US) VOIGT, Johannes, H. Cambridge, MA 02142 (US) NETHERTON, Matthew Cambridge, MA 02142 (US) BRUCELLE, Francois Cambridge, MA 02142 (US) (74) Representative: Carpmaels & Ransford LLP  One Southampton Row London WC1B 5HA London WC1B 5HA (GB)